This Infographic Helps Put the AK-47 vs. AR-15 Debate to Rest

"They are two of the most recognizable and widely used firearms in the world. Both have their own preferred fan base, and many of the world's greatest military powers will have at least one of these rifle types in active service. To the uninformed, however, it's difficult to separate the two.

Fortunately, this infographic takes care of that for you. We're getting down to the nitty-gritty to compare the basic functionality and cold hard facts of these two popular, and misunderstood firearms." (Follow to view the entire expandable infographic)
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No comparison is necessarily totally definitive but this may at least clear up some of the common misconceptions. Predictably, the AK and its variants is by far among the most prevalent rifle found in terrorist organizations and is produced from many sources, legitimate and illegitimate. The 7.62x39 AK round is commonly sourced from Eastern Block regions and often steel cased. The AR round is the NATO designated 5.56x45.
Thanks to Outdoor Hub for producing an informative infographic.